| Type: | Wireline Drill Rod |
|---|---|
| Usage: | Core Drilling |
| Certification: | CE, ISO |
| Material: | Cr-Mo Steel, 4130 |
| Surface Treatment: | Heat Treatment |
| Industry: | Rock Coring Survey |
| Samples: |
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| Customization: |
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some additional details about wireline drilling pipe in the drilling industry:
Wireline Core Barrel Components: The core barrel assembly used in wireline drilling pipe consists of several key components:
Core Bit: The core bit is the cutting tool attached to the bottom of the core barrel. It is designed to penetrate the rock or formation and extract the core sample. Core bits come in various types, such as diamond bits, which use industrial-grade diamonds to cut through hard formations, and polycrystalline diamond compact (PDC) bits, which use a combination of diamonds and tungsten carbide.
Core Lifter: The core lifter is a device located above the core bit that helps to prevent the core sample from falling out or becoming damaged during retrieval. It consists of a spring-loaded mechanism that expands when the core sample is lifted, securing the sample within the core barrel.
Inner Tube: The inner tube is the component that houses the core sample during drilling and retrieval. It is usually made of steel and is designed to protect the core sample from contamination and damage. The inner tube can be split or non-split, depending on the specific application and core sample requirements.
Overshot Assembly: The overshot assembly is a critical part of the core barrel that allows for the retrieval of the core sample. It engages with the core bit and locks onto the inner tube, allowing the core sample to be brought to the surface during wireline retrieval.
Core Sample Handling: Once the core sample is retrieved using wireline drilling pipe, proper handling techniques are essential to preserve the integrity and quality of the sample. Some key considerations include:
Core Sample Extraction: The core sample is carefully removed from the inner tube using specialized tools, such as core splitters or core saws. These tools ensure clean and precise cuts, minimizing any potential damage or alteration to the core sample.
Core Sample Packaging: After extraction, the core sample is typically placed in core trays or boxes. The trays are labeled and organized based on the borehole location, depth, and other relevant information. This systematic approach ensures easy identification and retrieval of specific core samples for analysis and storage.
Core Sample Preservation: To maintain the quality of the core sample, it is important to prevent moisture loss, contamination, and physical damage. Core samples are often wrapped in plastic or placed in sealed plastic bags to protect them from environmental factors. Additionally, specific precautions may be taken for temperature-sensitive samples to prevent thermal degradation.
Wireline Drilling Applications: Wireline drilling pipe finds applications in various industries and drilling operations. Some common applications include:
Mineral Exploration: Wireline drilling is extensively used in mineral exploration to obtain core samples for geological analysis, identification of mineral deposits, and resource estimation. The continuous sampling feature of wireline drilling allows for efficient and cost-effective exploration programs.
Geotechnical Investigations: Wireline drilling plays a crucial role in geotechnical investigations, which involve assessing the physical properties of soil and rock formations for engineering and construction purposes. Core samples obtained through wireline drilling help in evaluating soil stability, foundation design, and site characterization.
Environmental Monitoring: Wireline drilling is employed in environmental monitoring projects to collect soil and groundwater samples for contamination assessment, remediation planning, and environmental impact studies. The ability to retrieve core samples without pulling out the entire drill string is advantageous in such applications.
Research and Scientific Studies: Wireline drilling is utilized in scientific research projects to gather subsurface data and conduct studies on geological formations, climate change, paleoclimatology, and other earth science disciplines. The continuous coring capability of wireline drilling enables scientists to collect detailed and continuous records of the subsurface.
Wireline Drilling Advancements: The wireline drilling industry continues to evolve, with advancements in technology and equipment. Some notable developments include:
Automated Wireline Systems: Automation and robotics are being increasingly integrated into wireline drilling systems. Automated wireline systems can perform tasks such as core recovery, core sample handling, and data acquisition with greater precision and efficiency, reducing human intervention and improving safety.
Wireline Formation Testing: Wireline technology is used for formation testing, which involves evaluating the properties and characteristics of the reservoir rock and fluid. Formation testing tools deployed through wireline drilling pipe can provide critical data for reservoir evaluation, such as permeability, pressure, fluid composition, and flow rates.
Wireline Imaging and Logging: Advanced wireline tools are capable of capturing high-resolution images and performing logging measurements while drilling. These tools use technologies such as resistivity, nuclear, acoustic, and magnetic resonance to provide detailed information about rock properties, formation boundaries, and fluid content in real-time.
Wireline drilling pipe and its associated components play a vital role in a wide range of drilling applications. Their design, functionality, and handling techniques contribute to the successful extraction and preservation of core samples for geological, engineering, and environmental purposes. Ongoing advancements in wireline technology continue to enhance the efficiency, accuracy, andreliability of wireline drilling operations, enabling us to gain deeper insights into the Earth's subsurface and support various industries and scientific endeavors.
Parameter table
| Size | Outer Diameter (mm) | Inner Diameter(mm) |
| AQ | 44.7 | 37.3 |
| BQ | 55.7 | 46.1 |
| NQ | 70.0 | 60.2 |
| HQ | 89.0 | 78.0 |
| PQ(PHD) | 114.5 | 101.5 |
| BTW | 56.3 | 48.0 |
| NTW | 73.3 | 64.0 |
| HTW | 91.3 | 81.0 |
| AW/AWJ/AWY | 43.7 | 30.7 |
| BW/BWJ/BWY | 54.0 | 38.0 |
| NW/NWY | 66.8 | 51.0 |
| HW | 89.0 | 71.0 |
| 42mm | 42.0 | 30.0 |
| 50mm | 50.0 | 37.0 |
| 60mm | 60.0 | 48.0 |
| 70mm | 73.0 | 54.6 |
| 90mm | 89.0 | 69.0 |
| S75A | 71.0 | 60.0 |
| S95A | 89.0 | 78.0 |
| S110 | 110.0 | 98.0 |
| S130 | 129.0 | 117.0 |
| Name: | Wireline Drill Rod |
| Product Basic parameters | |
| Model: | AQ,BQ,LTK48,NQ,NQ3,HQ,HQ3,PQ,PQ3 NTW, BTW, HTW |
| Material: | Alloy Steel Tubing |
| Dimensions: | 0.5,1m, 1.5m, 2m,2.5,3m length or customized |
| Color: | Black or customized |
| Applications: | Drilling Tools |
| Standard: | ISO-9001 |
| Application: | Mining or geological Drilling |
| Rod Model | OD (mm) | ID (mm) | Thread Pitch(mm) | Pin Length(mm) | Rod Length(m) | Unit Bundle Qty (pcs) |
| BAU(Q) | 55.6 | 46.1 | 8.5 | 44.5 | 3 | 19/25/30 |
| NAU(Q) | 69.9 | 60.3 | 8.5 | 44.45 | 3 | 19/25/30 |
| HAU(Q) | 88.9 | 77.8 | 8.5 | 44.45 | 3 | 19/25/30 |
| BRAU(RQ) | 55.6 | 46.1 | 8.5 | 42 | 3 | 19/25/30 |
| NRAU(RQ) | 69.6 | 60.3 | 8.5 | 42 | 3 | 19/25/30 |
| HRAU(RQ) | 88.9 | 77.8 | 8.5 | 42 | 3 | 19/25/30 |
| PHD | 114 | 102 | 10.2 | 63 | 3 | 79/25/30 |
FAQ:
Q1: What are the applications of directional drilling?
Directional drilling allows drilling of long horizontal wellbores, accessing multiple reservoirs from one surface location, steering around obstructions, and precision placement of well trajectories.
Q5: How does coiled tubing drilling differ from conventional?
Coiled tubing uses continuous small-diameter tubing that is spooled in/out, avoiding jointed pipe connections. This enables drilling and well interventions without shutting in fluid-producing zones. However, it has less capacity than drillpipe.
Q3: What are MWD and LWD tools?
Measurement-while-drilling (MWD) tools provide downhole surveys to track wellbore trajectory. Logging-while-drilling (LWD) tools make real-time formation evaluations via embedded sensors without wireline runs, to optimize drilling decisions.
Q4: What are the functions of casing?
Casing isolated formations, provides borehole stability, protects against drilling fluid invasion, and isolates production/injection intervals. Proper casing design is important for well integrity.
Q5: What common drilling problems are encountered?
Examples include lost circulation, wellbore instability, stuck pipe, kicks/blowouts, fires/explosions, pipe/BHA failures, cuttings/debris obstruction, fluid problems, downhole equipment failures. Proactive management is needed.
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